Laura Fitton & Michael Gruen 
Twitter For Dummies, Mini Edition [EPUB ebook] 

Learn all the things you can do with Twitter!
Make new friends, promote a product or service, build a fan
base, raise funds for your favorite charity, and be part of the
hottest trend around! Let these experts teach you Twitter
shorthand, show you how to sign up, help you follow and be
followed, and start you on the road to tweet success.
Open the book and find:
* How to locate people to follow
* Tips for a good username
* Ways to condense your message to 140 characters or less
* Advice on sprucing up your profile
* The ins and outs of Twetiquette